on or before

基本解釋

Negotiation must be on or before the 15rh day of shipment.
自裝船日起15天或之前議付。
Thirty-four of 35 were approved on or before the review time targets agreed to with industry under PDUFA, including three cancer drugs that FDA approved in less than six months.
34/35個(gè)藥物是與藥業(yè)工業(yè)在PDUFA下同意目標(biāo)審評(píng)時(shí)間時(shí)或前被批準(zhǔn)的，包括3個(gè)癌癥藥物FDA在短于6個(gè)月內(nèi)批準(zhǔn)。
blog.sina.com.cn
Remember to return your application form by mail on or before 15th May.
記住在五月15號(hào)或之前通過(guò)郵件上繳你是申請(qǐng)表。

C.D.C.officials say people should put on sunscreen before they leave home, even on cloudy or cool days.
So a bit of uninteresting math, a bit of focus on sizes of types, but any questions on syntax or concepts thus far before we now put this to the test?
一些比較無(wú)趣的數(shù)字，一些關(guān)于類型的大小,在我們現(xiàn)在進(jìn)行試驗(yàn)之前,你們對(duì)這其中的語(yǔ)法或概念有什么問(wèn)題嗎？
哈佛公開課 - 計(jì)算機(jī)科學(xué)課程節(jié)選
I find that every time we do our meditation on Thursday, I'm always running to make it, or something happened before I get there, I'm like "Oh my God, meditation!"
我發(fā)現(xiàn)每次我們周四,要冥想時(shí)，我總是匆匆趕過(guò)去，或者是到達(dá)之前發(fā)生一點(diǎn)事故，我就好像“天哪，要冥想！“
普林斯頓公開課 - 人性課程節(jié)選

As of now, our opening brief is due on or before April 8, 2013.
FORBES: War Tax Resisters - Don't Call Them Frivolous